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HLRmon Accounting Portal for Grid Resource Usage

HLRmon is an accounting portal designed for the distributed and heterogeneous nature of Grid infrastructure. It offers customizable views, aggregation at different levels, and integration of CPU and storage accounting data. Visit HLRmon for the Italian Grid Infrastructure.

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HLRmon Accounting Portal for Grid Resource Usage

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  1. HLRmon accounting portal Enrico Fattibene INFN – CNAF enrico.fattibene@cnaf.infn.it hlrmon@lists.infn.it

  2. Motivation • Resource usage accounting in Grid is • challenging due to the distributed nature of the infrastructure and the heterogeneous nature of the accessed resources • necessary for its stakeholders, such as site managers, VO managers, operation centers, etc. • Users need to access accounting information at different levels of aggregation • an exhaustive and easy to use graphical interface is fundamental • many views are needed

  3. HLRmon • HLRmon (Home Location Register monitor) is the accounting portal of choice of the Italian National Grid Initiative (NGI): • Developed and funded in the framework of the INFN Grid project • Based on the Distributed Grid Accounting Service (DGAS) • Deployed in production since 2007 • Has been customized to meet the WLCG needs: • Specific aggregation views for the Tier-1 and Tier-2 sites and the LHC VOs • Both CPU and storage accounting • https://dgas.cnaf.infn.it/(requires a valid certificate released by a CA recognized by LCG)

  4. Why HLRmon? • Ready to be deployed on a National Grid for the implementation of a stand-alone accounting infrastructure • Highly customizable views • Visualization of data at different levels of aggregation • site, VO, CA, VOMS role, job type (Grid vs local) • Visualization of CPU and Wall Time normalized by different benchmarks • WLCG views which integrate data retrieved by the gLite Information System and storage accounting data • Customizable for a desired set of sites and VOs

  5. HLRmon accounting portal Is based on the DGAS accounting system Provides a complete section on CPU accounting reports Offers a fine granularity of data aggregation Allows a role-based investigation of Grid user jobs Includes customized WLCG views with CPU and storage accounting information Is successfully deployed as accounting portal for National Grids

  6. DGAS + HLRmon DGAS sensors collect accounting information at site level Site data are sent to site or multi-site HLRs (Home Location Register) A top level HLR receives accounting data from all the Grid HLRs The HLRmon server retrieves data from the top level HLR and present them through a web interface National Grid HLRmon Top-level HLR Site A Multi-site HLR Site HLR (DGAS server) Site B Site B Computing Element Computing Element Computing Element DGAS sensors DGAS sensors DGAS sensors DGAS sensors

  7. Visit HLRmon for Italian Grid Infrastructure https://dgas.cnaf.infn.it/hlrmon/report/charts.php (a personal certificate in the browser is required) Enrico Fattibene INFN – CNAF enrico.fattibene@cnaf.infn.it hlrmon@lists.infn.it

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